公开(公告)号：EP0412438A2

公开(公告)日：1991-02-13

申请号：EP90114845.2

申请日：1990-08-02

申请人： IMPLANTOLOGY INC

发明人： Forte, Mark Robert

IPC分类号： A61F2/30 ,  A61F2/32

CPC分类号： A61F2/32 ,  A61F2/3609 ,  A61F2002/30662 ,  A61F2002/3208 ,  A61F2002/3233 ,  A61F2002/3258 ,  A61F2002/3283 ,  A61F2002/3411 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00203 ,  A61F2310/00239

摘要： An implantable prosthetic hip joint includes a spherical acetabular shell articulating within the acetabulum socket of a pelvis and including a spherical shell portion defining an inner spherical surface, and a skirt portion extending downwardly there from; a femoral head including a femoral head and a stem secured to the femur of the person; a hemispherical bearing insert mounted in the spherical shell portion for receiving the femoral head for ball-and-socket movement therein; a retractable split annular rim positioned below the bearing insert and including a central opening which permits passage of the femoral head therethrough, and an inner ring surface, the rim including concentric threads along the outer surface thereof which releasably mate with concentric threads along the inner surface of the skirt portion to secure the rim in a first position spaced from the bearing insert and a second position at least substantially in contact with the bearing insert, with an annular recess being defined between the bearing insert and the split rim when the split rim is secured in the first position; and a split spring ring which retains the femoral head in the bearing insert, and includes an annular inner arcuate surface biased into engagement with the femoral head and being movable in the annular recess when the split rim is secured in the first position and being held by the inner ring surface when the split rim is secured in the second position.

摘要翻译： 可植入假体髋关节包括：骨髋关节内的球形髋臼壳，其包括限定内球面的球形外壳部分和从其延伸的裙部; 股骨头包括股骨头和固定到人的股骨的柄; 安装在球形壳体部分中的半球形轴承插入件，用于接收用于其中的球窝运动的股骨头; 位于所述轴承插入件下方并且包括允许所述股骨头通过的中心开口的可缩回的分开的环形边缘以及内环表面，所述边缘包括沿其外表面的同心螺纹，所述同心螺纹沿着所述内表面与同心螺纹可释放地配合 以将边缘固定在与轴承插入件间隔开的第一位置，以及至少基本上与轴承插入件接触的第二位置，当分隔边缘为 处于第一位; 以及分裂弹簧环，其将股骨头保持在轴承插入件中，并且包括偏置成与股骨头接合的环形内弓形表面，并且当分离边缘固定在第一位置并且被保持在 当分割边缘固定在第二位置时的内环表面。

公开(公告)号：EP0412438A3

公开(公告)日：1992-08-05

申请号：EP90114845.2

申请日：1990-08-02

申请人： IMPLANTOLOGY INC

发明人： Forte, Mark Robert

IPC分类号： A61F2/30 ,  A61F2/32

CPC分类号： A61F2/32 ,  A61F2/3609 ,  A61F2002/30662 ,  A61F2002/3208 ,  A61F2002/3233 ,  A61F2002/3258 ,  A61F2002/3283 ,  A61F2002/3411 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00203 ,  A61F2310/00239

摘要： An implantable prosthetic hip joint includes a spherical acetabular shell articulating within the acetabulum socket of a pelvis and including a spherical shell portion defining an inner spherical surface, and a skirt portion extending downwardly there from; a femoral head including a femoral head and a stem secured to the femur of the person; a hemispherical bearing insert mounted in the spherical shell portion for receiving the femoral head for ball-and-socket movement therein; a retractable split annular rim positioned below the bearing insert and including a central opening which permits passage of the femoral head therethrough, and an inner ring surface, the rim including concentric threads along the outer surface thereof which releasably mate with concentric threads along the inner surface of the skirt portion to secure the rim in a first position spaced from the bearing insert and a second position at least substantially in contact with the bearing insert, with an annular recess being defined between the bearing insert and the split rim when the split rim is secured in the first position; and a split spring ring which retains the femoral head in the bearing insert, and includes an annular inner arcuate surface biased into engagement with the femoral head and being movable in the annular recess when the split rim is secured in the first position and being held by the inner ring surface when the split rim is secured in the second position.

摘要翻译： 一种可植入假体髋关节，包括：球形髋臼壳，其铰接在骨盆的髋臼窝内并且包括限定内球形表面的球形壳部分和从其向下延伸的裙部; 股骨头，其包括股骨头和固定到人的股骨上的杆; 安装在球形壳体部分中的半球形轴承插入件，用于接收股骨头以便在其中进行球窝运动; 位于支承插入件下方且包括允许股骨头穿过其中的中心开口和内环表面的可缩回裂开环形边沿，所述边沿包括沿其外表面的同心螺纹，所述同心螺纹沿着内表面可释放地与同心螺纹配合 以将所述边缘固定在与所述轴承插入物间隔开的第一位置和至少基本上与所述轴承插入物接触的第二位置，当所述分离边缘为所述轴承插入物时，在所述轴承插入物和所述分离边缘之间限定环形凹槽 获得第一名; 以及将股骨头保持在轴承插入件中的分裂弹簧环，并且包括偏置成与股骨头接合的环形内弓形表面，并且当分离边缘被固定在第一位置并且被保持在 当分裂边缘被固定在第二位置时的内环表面。